Siemens FLENDER B3 E Series Assembly And Operating Instructions Manual page 83

Faults
Oil leakage from the gear unit.
Oil foaming in the gear unit.
Water in oil.
Causes
Inadequate sealing of housing
covers and/or joints.
Radial shaft­sealing rings defective.
Preservation agent not completely
drained.
Oil­supply system has been
operated too long at low
temperatures.
Gear unit too cold in operation.
Water in oil.
Oil too old
(defoaming agent used up).
Unsuitable oils mixed up.
Oil foams in sump.
Defective oil­supply system or
cooling coil.
Gear unit exposed to cold air from
machine­room ventilator: Water
condensing.
Climatic conditions.
BA 5033 EN 03/2011
83 / 96
Remedy
Check and, if necessary,
replace sealings. Seal joints.
Check radial shaft­sealing rings
and, if necessary, replace.
Oil change.
Stop oil­supply system.
Allow the oil to degas.
Shut down gear unit and have
oil degassed. Restart without
cooling water.
Test the oil, change oil,
if necessary.
Test the oil, change oil,
if necessary.
Test the oil, change oil,
if necessary.
Check state of oil by the test­tube
method for water contamination.
Have oil analysed by laboratory.
Check the oil­supply system or
cooling coil, replace any defective
parts. Consult operating instructions
for oil­supply system.
Protect gear unit with suitable heat
insulation. Close air outlet or alter its
direction by structural measures.
Contact Customer Service.
If necessary, fit wet­air filter.